• support of MIFARE® Classic, Ultralight, DESFire contactless RFID cards and transponders,
• built-in antenna,
• card memory with build-in lock driver,
• lots of communication interfaces type, depend on version (see Datasheet),
• built-in relay and buzzer,
• built-in push-button for reset to default settings,
• 2 configurable inputs/outputs,
• two-state outputs control,
• read-out of two-state input,
• changeable format of sending ID,
• MAD functionality,
• data password protected,
• software update via serial interface using NEFIR program.

The full model name (P/N) of the devices consists of the name of the CTU family and subsequent letters after the hyphen, corresponding respectively to:

• support for the proximity standard (D, M, P),
• interface (2, 4, 5, S),
• inputs / outputs (R, N),
• support for additional functionalities (M).

For example CTU-M5R reader has support of MIFARE® Classic, Ultralight, DESFire transponders, RS232TTL, SPI, I2C, 1-Wire, WIEGAND interfaces and build-in relay. A full list of available parameter combinations can be found in the technical documentation.